Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1415 insertions, 0 deletions

diff --git a/comm/mailnews/db/mork/morkTable.cpp b/comm/mailnews/db/mork/morkTable.cpp
new file mode 100644
index 0000000000..ee27ff1328
--- /dev/null
+++ b/comm/mailnews/db/mork/morkTable.cpp
@@ -0,0 +1,1415 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-  */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _MDB_
+#  include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#  include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#  include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#  include "morkMap.h"
+#endif
+
+#ifndef _MORKENV_
+#  include "morkEnv.h"
+#endif
+
+#ifndef _MORKTABLE_
+#  include "morkTable.h"
+#endif
+
+#ifndef _MORKSTORE_
+#  include "morkStore.h"
+#endif
+
+#ifndef _MORKROWSPACE_
+#  include "morkRowSpace.h"
+#endif
+
+#ifndef _MORKARRAY_
+#  include "morkArray.h"
+#endif
+
+#ifndef _MORKROW_
+#  include "morkRow.h"
+#endif
+
+#ifndef _MORKTABLEROWCURSOR_
+#  include "morkTableRowCursor.h"
+#endif
+
+#ifndef _MORKROWOBJECT_
+#  include "morkRowObject.h"
+#endif
+
+// 456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` `````
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void morkTable::CloseMorkNode(
+    morkEnv* ev) /*i*/  // CloseTable() only if open
+{
+  if (this->IsOpenNode()) {
+    morkObject::CloseMorkNode(ev);  // give base class a chance.
+    this->MarkClosing();
+    this->CloseTable(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkTable::~morkTable() /*i*/  // assert CloseTable() executed earlier
+{
+  CloseMorkNode(mMorkEnv);
+  MORK_ASSERT(this->IsShutNode());
+  MORK_ASSERT(mTable_Store == 0);
+  MORK_ASSERT(mTable_RowSpace == 0);
+}
+
+/*public non-poly*/
+morkTable::morkTable(
+    morkEnv* ev, /*i*/
+    const morkUsage& inUsage, nsIMdbHeap* ioHeap, morkStore* ioStore,
+    nsIMdbHeap* ioSlotHeap, morkRowSpace* ioRowSpace,
+    const mdbOid* inOptionalMetaRowOid,  // can be nil to avoid specifying
+    mork_tid inTid, mork_kind inKind, mork_bool inMustBeUnique)
+    : morkObject(ev, inUsage, ioHeap, (mork_color)inTid, (morkHandle*)0),
+      mTable_Store(0),
+      mTable_RowSpace(0),
+      mTable_MetaRow(0)
+
+      ,
+      mTable_RowMap(0)
+      // , mTable_RowMap(ev, morkUsage::kMember, (nsIMdbHeap*) 0, ioSlotHeap,
+      //   morkTable_kStartRowMapSlotCount)
+      ,
+      mTable_RowArray(ev, morkUsage::kMember, (nsIMdbHeap*)0,
+                      morkTable_kStartRowArraySize, ioSlotHeap)
+
+      ,
+      mTable_ChangeList(),
+      mTable_ChangesCount(0),
+      mTable_ChangesMax(3)  // any very small number greater than zero
+
+      ,
+      mTable_Kind(inKind)
+
+      ,
+      mTable_Flags(0),
+      mTable_Priority(morkPriority_kLo)  // NOT high priority
+      ,
+      mTable_GcUses(0),
+      mTable_Pad(0) {
+  this->mLink_Next = 0;
+  this->mLink_Prev = 0;
+
+  if (ev->Good()) {
+    if (ioStore && ioSlotHeap && ioRowSpace) {
+      if (inKind) {
+        if (inMustBeUnique) this->SetTableUnique();
+        mTable_Store = ioStore;
+        mTable_RowSpace = ioRowSpace;
+        if (inOptionalMetaRowOid)
+          mTable_MetaRowOid = *inOptionalMetaRowOid;
+        else {
+          mTable_MetaRowOid.mOid_Scope = 0;
+          mTable_MetaRowOid.mOid_Id = morkRow_kMinusOneRid;
+        }
+        if (ev->Good()) {
+          if (this->MaybeDirtySpaceStoreAndTable())
+            this->SetTableRewrite();  // everything is dirty
+
+          mNode_Derived = morkDerived_kTable;
+        }
+        this->MaybeDirtySpaceStoreAndTable();  // new table might dirty store
+      } else
+        ioRowSpace->ZeroKindError(ev);
+    } else
+      ev->NilPointerError();
+  }
+}
+
+NS_IMPL_ISUPPORTS_INHERITED(morkTable, morkObject, nsIMdbTable)
+
+/*public non-poly*/ void morkTable::CloseTable(
+    morkEnv* ev) /*i*/  // called by CloseMorkNode();
+{
+  if (this->IsNode()) {
+    morkRowMap::SlotStrongRowMap((morkRowMap*)0, ev, &mTable_RowMap);
+    // mTable_RowMap.CloseMorkNode(ev);
+    mTable_RowArray.CloseMorkNode(ev);
+    mTable_Store = 0;
+    mTable_RowSpace = 0;
+    this->MarkShut();
+  } else
+    this->NonNodeError(ev);
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` `````
+
+// { ===== begin nsIMdbCollection methods =====
+
+// { ----- begin attribute methods -----
+NS_IMETHODIMP
+morkTable::GetSeed(nsIMdbEnv* mev,
+                   mdb_seed* outSeed)  // member change count
+{
+  nsresult outErr = NS_OK;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    *outSeed = mTable_RowArray.mArray_Seed;
+    outErr = ev->AsErr();
+  }
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::GetCount(nsIMdbEnv* mev,
+                    mdb_count* outCount)  // member count
+{
+  NS_ENSURE_ARG_POINTER(outCount);
+  *outCount = mTable_RowArray.mArray_Fill;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+morkTable::GetPort(nsIMdbEnv* mev,
+                   nsIMdbPort** acqPort)  // collection container
+{
+  (void)morkEnv::FromMdbEnv(mev);
+  NS_ENSURE_ARG_POINTER(acqPort);
+  *acqPort = mTable_Store;
+  return NS_OK;
+}
+// } ----- end attribute methods -----
+
+// { ----- begin cursor methods -----
+NS_IMETHODIMP
+morkTable::GetCursor(          // make a cursor starting iter at inMemberPos
+    nsIMdbEnv* mev,            // context
+    mdb_pos inMemberPos,       // zero-based ordinal pos of member in collection
+    nsIMdbCursor** acqCursor)  // acquire new cursor instance
+{
+  return this->GetTableRowCursor(mev, inMemberPos,
+                                 (nsIMdbTableRowCursor**)acqCursor);
+}
+// } ----- end cursor methods -----
+
+// { ----- begin ID methods -----
+NS_IMETHODIMP
+morkTable::GetOid(nsIMdbEnv* mev,
+                  mdbOid* outOid)  // read object identity
+{
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  GetTableOid(ev, outOid);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+morkTable::BecomeContent(nsIMdbEnv* mev,
+                         const mdbOid* inOid)  // exchange content
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+  // remember table->MaybeDirtySpaceStoreAndTable();
+}
+
+// } ----- end ID methods -----
+
+// { ----- begin activity dropping methods -----
+NS_IMETHODIMP
+morkTable::DropActivity(  // tell collection usage no longer expected
+    nsIMdbEnv* mev) {
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+// } ----- end activity dropping methods -----
+
+// } ===== end nsIMdbCollection methods =====
+
+// { ===== begin nsIMdbTable methods =====
+
+// { ----- begin attribute methods -----
+
+NS_IMETHODIMP
+morkTable::SetTablePriority(nsIMdbEnv* mev, mdb_priority inPrio) {
+  nsresult outErr = NS_OK;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    if (inPrio > morkPriority_kMax) inPrio = morkPriority_kMax;
+
+    mTable_Priority = inPrio;
+    outErr = ev->AsErr();
+  }
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::GetTablePriority(nsIMdbEnv* mev, mdb_priority* outPrio) {
+  nsresult outErr = NS_OK;
+  mork_priority prio = 0;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    prio = mTable_Priority;
+    if (prio > morkPriority_kMax) {
+      prio = morkPriority_kMax;
+      mTable_Priority = prio;
+    }
+    outErr = ev->AsErr();
+  }
+  if (outPrio) *outPrio = prio;
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::GetTableBeVerbose(nsIMdbEnv* mev, mdb_bool* outBeVerbose) {
+  NS_ENSURE_ARG_POINTER(outBeVerbose);
+  *outBeVerbose = IsTableVerbose();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+morkTable::SetTableBeVerbose(nsIMdbEnv* mev, mdb_bool inBeVerbose) {
+  nsresult outErr = NS_OK;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    if (inBeVerbose)
+      SetTableVerbose();
+    else
+      ClearTableVerbose();
+
+    outErr = ev->AsErr();
+  }
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::GetTableIsUnique(nsIMdbEnv* mev, mdb_bool* outIsUnique) {
+  NS_ENSURE_ARG_POINTER(outIsUnique);
+  *outIsUnique = IsTableUnique();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+morkTable::GetTableKind(nsIMdbEnv* mev, mdb_kind* outTableKind) {
+  NS_ENSURE_ARG_POINTER(outTableKind);
+  *outTableKind = mTable_Kind;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+morkTable::GetRowScope(nsIMdbEnv* mev, mdb_scope* outRowScope) {
+  nsresult outErr = NS_OK;
+  mdb_scope rowScope = 0;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    if (mTable_RowSpace)
+      rowScope = mTable_RowSpace->SpaceScope();
+    else
+      NilRowSpaceError(ev);
+
+    outErr = ev->AsErr();
+  }
+  if (outRowScope) *outRowScope = rowScope;
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::GetMetaRow(
+    nsIMdbEnv* mev,
+    const mdbOid* inOptionalMetaRowOid,  // can be nil to avoid specifying
+    mdbOid* outOid,      // output meta row oid, can be nil to suppress output
+    nsIMdbRow** acqRow)  // acquire table's unique singleton meta row
+// The purpose of a meta row is to support the persistent recording of
+// meta info about a table as cells put into the distinguished meta row.
+// Each table has exactly one meta row, which is not considered a member
+// of the collection of rows inside the table.  The only way to tell
+// whether a row is a meta row is by the fact that it is returned by this
+// GetMetaRow() method from some table. Otherwise nothing distinguishes
+// a meta row from any other row.  A meta row can be used anyplace that
+// any other row can be used, and can even be put into other tables (or
+// the same table) as a table member, if this is useful for some reason.
+// The first attempt to access a table's meta row using GetMetaRow() will
+// cause the meta row to be created if it did not already exist.  When the
+// meta row is created, it will have the row oid that was previously
+// requested for this table's meta row; or if no oid was ever explicitly
+// specified for this meta row, then a unique oid will be generated in
+// the row scope named "metaScope" (so obviously MDB clients should not
+// manually allocate any row IDs from that special meta scope namespace).
+// The meta row oid can be specified either when the table is created, or
+// else the first time that GetMetaRow() is called, by passing a non-nil
+// pointer to an oid for parameter inOptionalMetaRowOid.  The meta row's
+// actual oid is returned in outOid (if this is a non-nil pointer), and
+// it will be different from inOptionalMetaRowOid when the meta row was
+// already given a different oid earlier.
+{
+  nsresult outErr = NS_OK;
+  nsIMdbRow* outRow = 0;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    morkRow* row = GetMetaRow(ev, inOptionalMetaRowOid);
+    if (row && ev->Good()) {
+      if (outOid) *outOid = row->mRow_Oid;
+
+      outRow = row->AcquireRowHandle(ev, mTable_Store);
+    }
+    outErr = ev->AsErr();
+  }
+  if (acqRow) *acqRow = outRow;
+
+  if (ev->Bad() && outOid) {
+    outOid->mOid_Scope = 0;
+    outOid->mOid_Id = morkRow_kMinusOneRid;
+  }
+  return outErr;
+}
+
+// } ----- end attribute methods -----
+
+// { ----- begin cursor methods -----
+NS_IMETHODIMP
+morkTable::GetTableRowCursor(  // make a cursor, starting iteration at inRowPos
+    nsIMdbEnv* mev,            // context
+    mdb_pos inRowPos,          // zero-based ordinal position of row in table
+    nsIMdbTableRowCursor** acqCursor)  // acquire new cursor instance
+{
+  nsresult outErr = NS_OK;
+  nsIMdbTableRowCursor* outCursor = 0;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    morkTableRowCursor* cursor = NewTableRowCursor(ev, inRowPos);
+    if (cursor) {
+      if (ev->Good()) {
+        // cursor->mCursor_Seed = (mork_seed) inRowPos;
+        outCursor = cursor;
+        outCursor->AddRef();
+      }
+    }
+
+    outErr = ev->AsErr();
+  }
+  if (acqCursor) *acqCursor = outCursor;
+  return outErr;
+}
+// } ----- end row position methods -----
+
+// { ----- begin row position methods -----
+NS_IMETHODIMP
+morkTable::PosToOid(   // get row member for a table position
+    nsIMdbEnv* mev,    // context
+    mdb_pos inRowPos,  // zero-based ordinal position of row in table
+    mdbOid* outOid)    // row oid at the specified position
+{
+  nsresult outErr = NS_OK;
+  mdbOid roid;
+  roid.mOid_Scope = 0;
+  roid.mOid_Id = (mork_id)-1;
+
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    morkRow* row = SafeRowAt(ev, inRowPos);
+    if (row) roid = row->mRow_Oid;
+
+    outErr = ev->AsErr();
+  }
+  if (outOid) *outOid = roid;
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::OidToPos(      // test for the table position of a row member
+    nsIMdbEnv* mev,       // context
+    const mdbOid* inOid,  // row to find in table
+    mdb_pos* outPos)      // zero-based ordinal position of row in table
+{
+  nsresult outErr = NS_OK;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    mork_pos pos = ArrayHasOid(ev, inOid);
+    if (outPos) *outPos = pos;
+    outErr = ev->AsErr();
+  }
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::PosToRow(     // get row member for a table position
+    nsIMdbEnv* mev,      // context
+    mdb_pos inRowPos,    // zero-based ordinal position of row in table
+    nsIMdbRow** acqRow)  // acquire row at table position inRowPos
+{
+  nsresult outErr = NS_OK;
+  nsIMdbRow* outRow = 0;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    morkRow* row = SafeRowAt(ev, inRowPos);
+    if (row && mTable_Store) outRow = row->AcquireRowHandle(ev, mTable_Store);
+
+    outErr = ev->AsErr();
+  }
+  if (acqRow) *acqRow = outRow;
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::RowToPos(   // test for the table position of a row member
+    nsIMdbEnv* mev,    // context
+    nsIMdbRow* ioRow,  // row to find in table
+    mdb_pos* outPos)   // zero-based ordinal position of row in table
+{
+  nsresult outErr = NS_OK;
+  mork_pos pos = -1;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    morkRowObject* row = (morkRowObject*)ioRow;
+    pos = ArrayHasOid(ev, &row->mRowObject_Row->mRow_Oid);
+    outErr = ev->AsErr();
+  }
+  if (outPos) *outPos = pos;
+  return outErr;
+}
+
+// Note that HasRow() performs the inverse oid->pos mapping
+// } ----- end row position methods -----
+
+// { ----- begin oid set methods -----
+NS_IMETHODIMP
+morkTable::AddOid(        // make sure the row with inOid is a table member
+    nsIMdbEnv* mev,       // context
+    const mdbOid* inOid)  // row to ensure membership in table
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+morkTable::HasOid(        // test for the table position of a row member
+    nsIMdbEnv* mev,       // context
+    const mdbOid* inOid,  // row to find in table
+    mdb_bool* outHasOid)  // whether inOid is a member row
+{
+  nsresult outErr = NS_OK;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    if (outHasOid) *outHasOid = MapHasOid(ev, inOid);
+    outErr = ev->AsErr();
+  }
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::CutOid(        // make sure the row with inOid is not a member
+    nsIMdbEnv* mev,       // context
+    const mdbOid* inOid)  // row to remove from table
+{
+  nsresult outErr = NS_OK;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    if (inOid && mTable_Store) {
+      morkRow* row = mTable_Store->GetRow(ev, inOid);
+      if (row) CutRow(ev, row);
+    } else
+      ev->NilPointerError();
+
+    outErr = ev->AsErr();
+  }
+  return outErr;
+}
+// } ----- end oid set methods -----
+
+// { ----- begin row set methods -----
+NS_IMETHODIMP
+morkTable::NewRow(       // create a new row instance in table
+    nsIMdbEnv* mev,      // context
+    mdbOid* ioOid,       // please use zero (unbound) rowId for db-assigned IDs
+    nsIMdbRow** acqRow)  // create new row
+{
+  nsresult outErr = NS_OK;
+  nsIMdbRow* outRow = 0;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    if (ioOid && mTable_Store) {
+      morkRow* row = 0;
+      if (ioOid->mOid_Id == morkRow_kMinusOneRid)
+        row = mTable_Store->NewRow(ev, ioOid->mOid_Scope);
+      else
+        row = mTable_Store->NewRowWithOid(ev, ioOid);
+
+      if (row && AddRow(ev, row))
+        outRow = row->AcquireRowHandle(ev, mTable_Store);
+    } else
+      ev->NilPointerError();
+
+    outErr = ev->AsErr();
+  }
+  if (acqRow) *acqRow = outRow;
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::AddRow(     // make sure the row with inOid is a table member
+    nsIMdbEnv* mev,    // context
+    nsIMdbRow* ioRow)  // row to ensure membership in table
+{
+  nsresult outErr = NS_OK;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    morkRowObject* rowObj = (morkRowObject*)ioRow;
+    morkRow* row = rowObj->mRowObject_Row;
+    AddRow(ev, row);
+    outErr = ev->AsErr();
+  }
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::HasRow(      // test for the table position of a row member
+    nsIMdbEnv* mev,     // context
+    nsIMdbRow* ioRow,   // row to find in table
+    mdb_bool* outBool)  // zero-based ordinal position of row in table
+{
+  nsresult outErr = NS_OK;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    morkRowObject* rowObj = (morkRowObject*)ioRow;
+    morkRow* row = rowObj->mRowObject_Row;
+    if (outBool) *outBool = MapHasOid(ev, &row->mRow_Oid);
+    outErr = ev->AsErr();
+  }
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::CutRow(     // make sure the row with inOid is not a member
+    nsIMdbEnv* mev,    // context
+    nsIMdbRow* ioRow)  // row to remove from table
+{
+  nsresult outErr = NS_OK;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    morkRowObject* rowObj = (morkRowObject*)ioRow;
+    morkRow* row = rowObj->mRowObject_Row;
+    CutRow(ev, row);
+    outErr = ev->AsErr();
+  }
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::CutAllRows(  // remove all rows from the table
+    nsIMdbEnv* mev)     // context
+{
+  nsresult outErr = NS_OK;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    CutAllRows(ev);
+    outErr = ev->AsErr();
+  }
+  return outErr;
+}
+// } ----- end row set methods -----
+
+// { ----- begin searching methods -----
+NS_IMETHODIMP
+morkTable::FindRowMatches(    // search variable number of sorted cols
+    nsIMdbEnv* mev,           // context
+    const mdbYarn* inPrefix,  // content to find as prefix in row's column cell
+    nsIMdbTableRowCursor** acqCursor)  // set of matching rows
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+morkTable::GetSearchColumns(  // query columns used by FindRowMatches()
+    nsIMdbEnv* mev,           // context
+    mdb_count* outCount,      // context
+    mdbColumnSet* outColSet)  // caller supplied space to put columns
+// GetSearchColumns() returns the columns actually searched when the
+// FindRowMatches() method is called.  No more than mColumnSet_Count
+// slots of mColumnSet_Columns will be written, since mColumnSet_Count
+// indicates how many slots are present in the column array.  The
+// actual number of search column used by the table is returned in
+// the outCount parameter; if this number exceeds mColumnSet_Count,
+// then a caller needs a bigger array to read the entire column set.
+// The minimum of mColumnSet_Count and outCount is the number slots
+// in mColumnSet_Columns that were actually written by this method.
+//
+// Callers are expected to change this set of columns by calls to
+// nsIMdbTable::SearchColumnsHint() or SetSearchSorting(), or both.
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+// } ----- end searching methods -----
+
+// { ----- begin hinting methods -----
+NS_IMETHODIMP
+morkTable::SearchColumnsHint(         // advise re future expected search cols
+    nsIMdbEnv* mev,                   // context
+    const mdbColumnSet* inColumnSet)  // columns likely to be searched
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+morkTable::SortColumnsHint(           // advise re future expected sort columns
+    nsIMdbEnv* mev,                   // context
+    const mdbColumnSet* inColumnSet)  // columns for likely sort requests
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+morkTable::StartBatchChangeHint(  // advise before many adds and cuts
+    nsIMdbEnv* mev,               // context
+    const void* inLabel)          // intend unique address to match end call
+// If batch starts nest by virtue of nesting calls in the stack, then
+// the address of a local variable makes a good batch start label that
+// can be used at batch end time, and such addresses remain unique.
+{
+  // we don't do anything here.
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+morkTable::EndBatchChangeHint(  // advise before many adds and cuts
+    nsIMdbEnv* mev,             // context
+    const void* inLabel)        // label matching start label
+// Suppose a table is maintaining one or many sort orders for a table,
+// so that every row added to the table must be inserted in each sort,
+// and every row cut must be removed from each sort.  If a db client
+// intends to make many such changes before needing any information
+// about the order or positions of rows inside a table, then a client
+// might tell the table to start batch changes in order to disable
+// sorting of rows for the interim.  Presumably a table will then do
+// a full sort of all rows at need when the batch changes end, or when
+// a surprise request occurs for row position during batch changes.
+{
+  // we don't do anything here.
+  return NS_OK;
+}
+// } ----- end hinting methods -----
+
+// { ----- begin sorting methods -----
+// sorting: note all rows are assumed sorted by row ID as a secondary
+// sort following the primary column sort, when table rows are sorted.
+
+NS_IMETHODIMP
+morkTable::CanSortColumn(  // query which column is currently used for sorting
+    nsIMdbEnv* mev,        // context
+    mdb_column inColumn,   // column to query sorting potential
+    mdb_bool* outCanSort)  // whether the column can be sorted
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+morkTable::GetSorting(           // view same table in particular sorting
+    nsIMdbEnv* mev,              // context
+    mdb_column inColumn,         // requested new column for sorting table
+    nsIMdbSorting** acqSorting)  // acquire sorting for column
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+morkTable::SetSearchSorting(   // use this sorting in FindRowMatches()
+    nsIMdbEnv* mev,            // context
+    mdb_column inColumn,       // often same as nsIMdbSorting::GetSortColumn()
+    nsIMdbSorting* ioSorting)  // requested sorting for some column
+// SetSearchSorting() attempts to inform the table that ioSorting
+// should be used during calls to FindRowMatches() for searching
+// the column which is actually sorted by ioSorting.  This method
+// is most useful in conjunction with nsIMdbSorting::SetCompare(),
+// because otherwise a caller would not be able to override the
+// comparison ordering method used during searches.  Note that some
+// database implementations might be unable to use an arbitrarily
+// specified sort order, either due to schema or runtime interface
+// constraints, in which case ioSorting might not actually be used.
+// Presumably ioSorting is an instance that was returned from some
+// earlier call to nsIMdbTable::GetSorting().  A caller can also
+// use nsIMdbTable::SearchColumnsHint() to specify desired change
+// in which columns are sorted and searched by FindRowMatches().
+//
+// A caller can pass a nil pointer for ioSorting to request that
+// column inColumn no longer be used at all by FindRowMatches().
+// But when ioSorting is non-nil, then inColumn should match the
+// column actually sorted by ioSorting; when these do not agree,
+// implementations are instructed to give precedence to the column
+// specified by ioSorting (so this means callers might just pass
+// zero for inColumn when ioSorting is also provided, since then
+// inColumn is both redundant and ignored).
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+// } ----- end sorting methods -----
+
+// { ----- begin moving methods -----
+// moving a row does nothing unless a table is currently unsorted
+
+NS_IMETHODIMP
+morkTable::MoveOid(         // change position of row in unsorted table
+    nsIMdbEnv* mev,         // context
+    const mdbOid* inOid,    // row oid to find in table
+    mdb_pos inHintFromPos,  // suggested hint regarding start position
+    mdb_pos inToPos,        // desired new position for row inOid
+    mdb_pos* outActualPos)  // actual new position of row in table
+{
+  nsresult outErr = NS_OK;
+  mdb_pos actualPos = -1;  // meaning it was never found in table
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    if (inOid && mTable_Store) {
+      morkRow* row = mTable_Store->GetRow(ev, inOid);
+      if (row) actualPos = MoveRow(ev, row, inHintFromPos, inToPos);
+    } else
+      ev->NilPointerError();
+
+    outErr = ev->AsErr();
+  }
+  if (outActualPos) *outActualPos = actualPos;
+  return outErr;
+}
+
+NS_IMETHODIMP
+morkTable::MoveRow(         // change position of row in unsorted table
+    nsIMdbEnv* mev,         // context
+    nsIMdbRow* ioRow,       // row oid to find in table
+    mdb_pos inHintFromPos,  // suggested hint regarding start position
+    mdb_pos inToPos,        // desired new position for row ioRow
+    mdb_pos* outActualPos)  // actual new position of row in table
+{
+  mdb_pos actualPos = -1;  // meaning it was never found in table
+  nsresult outErr = NS_OK;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if (ev) {
+    morkRowObject* rowObj = (morkRowObject*)ioRow;
+    morkRow* row = rowObj->mRowObject_Row;
+    actualPos = MoveRow(ev, row, inHintFromPos, inToPos);
+    outErr = ev->AsErr();
+  }
+  if (outActualPos) *outActualPos = actualPos;
+  return outErr;
+}
+// } ----- end moving methods -----
+
+// { ----- begin index methods -----
+NS_IMETHODIMP
+morkTable::AddIndex(         // create a sorting index for column if possible
+    nsIMdbEnv* mev,          // context
+    mdb_column inColumn,     // the column to sort by index
+    nsIMdbThumb** acqThumb)  // acquire thumb for incremental index building
+// Call nsIMdbThumb::DoMore() until done, or until the thumb is broken, and
+// then the index addition will be finished.
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+morkTable::CutIndex(         // stop supporting a specific column index
+    nsIMdbEnv* mev,          // context
+    mdb_column inColumn,     // the column with index to be removed
+    nsIMdbThumb** acqThumb)  // acquire thumb for incremental index destroy
+// Call nsIMdbThumb::DoMore() until done, or until the thumb is broken, and
+// then the index removal will be finished.
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+morkTable::HasIndex(        // query for current presence of a column index
+    nsIMdbEnv* mev,         // context
+    mdb_column inColumn,    // the column to investigate
+    mdb_bool* outHasIndex)  // whether column has index for this column
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+morkTable::EnableIndexOnSort(  // create an index for col on first sort
+    nsIMdbEnv* mev,            // context
+    mdb_column inColumn)       // the column to index if ever sorted
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+morkTable::QueryIndexOnSort(   // check whether index on sort is enabled
+    nsIMdbEnv* mev,            // context
+    mdb_column inColumn,       // the column to investigate
+    mdb_bool* outIndexOnSort)  // whether column has index-on-sort enabled
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+morkTable::DisableIndexOnSort(  // prevent future index creation on sort
+    nsIMdbEnv* mev,             // context
+    mdb_column inColumn)        // the column to index if ever sorted
+{
+  NS_ASSERTION(false, "not implemented");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+// } ----- end index methods -----
+
+// } ===== end nsIMdbTable methods =====
+
+// we override these so that we'll use the xpcom add and release ref.
+#ifndef _MSC_VER
+mork_refs morkTable::AddStrongRef(nsIMdbEnv* ev) { return (mork_refs)AddRef(); }
+#endif
+
+mork_refs morkTable::AddStrongRef(morkEnv* ev) { return (mork_refs)AddRef(); }
+
+#ifndef _MSC_VER
+nsresult morkTable::CutStrongRef(nsIMdbEnv* ev) { return (nsresult)Release(); }
+#endif
+
+mork_refs morkTable::CutStrongRef(morkEnv* ev) { return (mork_refs)Release(); }
+
+mork_u2 morkTable::AddTableGcUse(morkEnv* ev) {
+  MORK_USED_1(ev);
+  if (mTable_GcUses < morkTable_kMaxTableGcUses)  // not already maxed out?
+    ++mTable_GcUses;
+
+  return mTable_GcUses;
+}
+
+mork_u2 morkTable::CutTableGcUse(morkEnv* ev) {
+  if (mTable_GcUses)  // any outstanding uses to cut?
+  {
+    if (mTable_GcUses < morkTable_kMaxTableGcUses)  // not frozen at max?
+      --mTable_GcUses;
+  } else
+    this->TableGcUsesUnderflowWarning(ev);
+
+  return mTable_GcUses;
+}
+
+// table dirty handling more complex than morkNode::SetNodeDirty() etc.
+
+void morkTable::SetTableClean(morkEnv* ev) {
+  if (mTable_ChangeList.HasListMembers()) {
+    nsIMdbHeap* heap = mTable_Store->mPort_Heap;
+    mTable_ChangeList.CutAndZapAllListMembers(ev, heap);  // forget changes
+  }
+  mTable_ChangesCount = 0;
+
+  mTable_Flags = 0;
+  this->SetNodeClean();
+}
+
+// notifications regarding table changes:
+
+void morkTable::NoteTableMoveRow(morkEnv* ev, morkRow* ioRow, mork_pos inPos) {
+  nsIMdbHeap* heap = mTable_Store->mPort_Heap;
+  if (this->IsTableRewrite() || this->HasChangeOverflow())
+    this->NoteTableSetAll(ev);
+  else {
+    morkTableChange* tableChange =
+        new (*heap, ev) morkTableChange(ev, ioRow, inPos);
+    if (tableChange) {
+      if (ev->Good()) {
+        mTable_ChangeList.PushTail(tableChange);
+        ++mTable_ChangesCount;
+      } else {
+        tableChange->ZapOldNext(ev, heap);
+        this->SetTableRewrite();  // just plan to write all table rows
+      }
+    }
+  }
+}
+
+void morkTable::note_row_move(morkEnv* ev, morkRow* ioRow, mork_pos inNewPos) {
+  if (this->IsTableRewrite() || this->HasChangeOverflow())
+    this->NoteTableSetAll(ev);
+  else {
+    nsIMdbHeap* heap = mTable_Store->mPort_Heap;
+    morkTableChange* tableChange =
+        new (*heap, ev) morkTableChange(ev, ioRow, inNewPos);
+    if (tableChange) {
+      if (ev->Good()) {
+        mTable_ChangeList.PushTail(tableChange);
+        ++mTable_ChangesCount;
+      } else {
+        tableChange->ZapOldNext(ev, heap);
+        this->NoteTableSetAll(ev);
+      }
+    }
+  }
+}
+
+void morkTable::note_row_change(morkEnv* ev, mork_change inChange,
+                                morkRow* ioRow) {
+  if (this->IsTableRewrite() || this->HasChangeOverflow())
+    this->NoteTableSetAll(ev);
+  else {
+    nsIMdbHeap* heap = mTable_Store->mPort_Heap;
+    morkTableChange* tableChange =
+        new (*heap, ev) morkTableChange(ev, inChange, ioRow);
+    if (tableChange) {
+      if (ev->Good()) {
+        mTable_ChangeList.PushTail(tableChange);
+        ++mTable_ChangesCount;
+      } else {
+        tableChange->ZapOldNext(ev, heap);
+        this->NoteTableSetAll(ev);
+      }
+    }
+  }
+}
+
+void morkTable::NoteTableSetAll(morkEnv* ev) {
+  if (mTable_ChangeList.HasListMembers()) {
+    nsIMdbHeap* heap = mTable_Store->mPort_Heap;
+    mTable_ChangeList.CutAndZapAllListMembers(ev, heap);  // forget changes
+  }
+  mTable_ChangesCount = 0;
+  this->SetTableRewrite();
+}
+
+/*static*/ void morkTable::TableGcUsesUnderflowWarning(morkEnv* ev) {
+  ev->NewWarning("mTable_GcUses underflow");
+}
+
+/*static*/ void morkTable::NonTableTypeError(morkEnv* ev) {
+  ev->NewError("non morkTable");
+}
+
+/*static*/ void morkTable::NonTableTypeWarning(morkEnv* ev) {
+  ev->NewWarning("non morkTable");
+}
+
+/*static*/ void morkTable::NilRowSpaceError(morkEnv* ev) {
+  ev->NewError("nil mTable_RowSpace");
+}
+
+mork_bool morkTable::MaybeDirtySpaceStoreAndTable() {
+  morkRowSpace* rowSpace = mTable_RowSpace;
+  if (rowSpace) {
+    morkStore* store = rowSpace->mSpace_Store;
+    if (store && store->mStore_CanDirty) {
+      store->SetStoreDirty();
+      rowSpace->mSpace_CanDirty = morkBool_kTrue;
+    }
+
+    if (rowSpace->mSpace_CanDirty)  // first time being dirtied?
+    {
+      if (this->IsTableClean()) {
+        mork_count rowCount = this->GetRowCount();
+        mork_count oneThird = rowCount / 4;  // one third of rows
+        if (oneThird > 0x07FFF)              // more than half max u2?
+          oneThird = 0x07FFF;
+
+        mTable_ChangesMax = (mork_u2)oneThird;
+      }
+      this->SetTableDirty();
+      rowSpace->SetRowSpaceDirty();
+
+      return morkBool_kTrue;
+    }
+  }
+  return morkBool_kFalse;
+}
+
+morkRow* morkTable::GetMetaRow(morkEnv* ev,
+                               const mdbOid* inOptionalMetaRowOid) {
+  morkRow* outRow = mTable_MetaRow;
+  if (!outRow) {
+    morkStore* store = mTable_Store;
+    mdbOid* oid = &mTable_MetaRowOid;
+    if (inOptionalMetaRowOid && !oid->mOid_Scope) *oid = *inOptionalMetaRowOid;
+
+    if (oid->mOid_Scope)  // oid already recorded in table?
+      outRow = store->OidToRow(ev, oid);
+    else {
+      outRow = store->NewRow(ev, morkStore_kMetaScope);
+      if (outRow)  // need to record new oid in table?
+        *oid = outRow->mRow_Oid;
+    }
+    mTable_MetaRow = outRow;
+    if (outRow)  // need to note another use of this row?
+    {
+      outRow->AddRowGcUse(ev);
+
+      this->SetTableNewMeta();
+      if (this->IsTableClean())  // catch dirty status of meta row?
+        this->MaybeDirtySpaceStoreAndTable();
+    }
+  }
+
+  return outRow;
+}
+
+void morkTable::GetTableOid(morkEnv* ev, mdbOid* outOid) {
+  morkRowSpace* space = mTable_RowSpace;
+  if (space) {
+    outOid->mOid_Scope = space->SpaceScope();
+    outOid->mOid_Id = this->TableId();
+  } else
+    this->NilRowSpaceError(ev);
+}
+
+nsIMdbTable* morkTable::AcquireTableHandle(morkEnv* ev) {
+  AddRef();
+  return this;
+}
+
+mork_pos morkTable::ArrayHasOid(morkEnv* ev, const mdbOid* inOid) {
+  MORK_USED_1(ev);
+  mork_count count = mTable_RowArray.mArray_Fill;
+  mork_pos pos = -1;
+  while (++pos < (mork_pos)count) {
+    morkRow* row = (morkRow*)mTable_RowArray.At(pos);
+    MORK_ASSERT(row);
+    if (row && row->EqualOid(inOid)) {
+      return pos;
+    }
+  }
+  return -1;
+}
+
+mork_bool morkTable::MapHasOid(morkEnv* ev, const mdbOid* inOid) {
+  if (mTable_RowMap)
+    return (mTable_RowMap->GetOid(ev, inOid) != 0);
+  else
+    return (ArrayHasOid(ev, inOid) >= 0);
+}
+
+void morkTable::build_row_map(morkEnv* ev) {
+  morkRowMap* map = mTable_RowMap;
+  if (!map) {
+    mork_count count = mTable_RowArray.mArray_Fill + 3;
+    nsIMdbHeap* heap = mTable_Store->mPort_Heap;
+    map = new (*heap, ev) morkRowMap(ev, morkUsage::kHeap, heap, heap, count);
+    if (map) {
+      if (ev->Good()) {
+        mTable_RowMap = map;  // put strong ref here
+        count = mTable_RowArray.mArray_Fill;
+        mork_pos pos = -1;
+        while (++pos < (mork_pos)count) {
+          morkRow* row = (morkRow*)mTable_RowArray.At(pos);
+          if (row && row->IsRow())
+            map->AddRow(ev, row);
+          else
+            row->NonRowTypeError(ev);
+        }
+      } else
+        map->CutStrongRef(ev);
+    }
+  }
+}
+
+morkRow* morkTable::find_member_row(morkEnv* ev, morkRow* ioRow) {
+  if (mTable_RowMap)
+    return mTable_RowMap->GetRow(ev, ioRow);
+  else {
+    mork_count count = mTable_RowArray.mArray_Fill;
+    mork_pos pos = -1;
+    while (++pos < (mork_pos)count) {
+      morkRow* row = (morkRow*)mTable_RowArray.At(pos);
+      if (row == ioRow) return row;
+    }
+  }
+  return (morkRow*)0;
+}
+
+mork_pos morkTable::MoveRow(
+    morkEnv* ev, morkRow* ioRow,  // change row position
+    mork_pos inHintFromPos,       // suggested hint regarding start position
+    mork_pos inToPos)             // desired new position for row ioRow
+// MoveRow() returns the actual position of ioRow afterwards; this
+// position is -1 if and only if ioRow was not found as a member.
+{
+  mork_pos outPos = -1;  // means ioRow was not a table member
+  mork_bool canDirty = (this->IsTableClean())
+                           ? this->MaybeDirtySpaceStoreAndTable()
+                           : morkBool_kTrue;
+
+  morkRow** rows = (morkRow**)mTable_RowArray.mArray_Slots;
+  mork_count count = mTable_RowArray.mArray_Fill;
+  if (count && rows && ev->Good())  // any members at all? no errors?
+  {
+    mork_pos lastPos = count - 1;  // index of last row slot
+
+    if (inToPos > lastPos)  // beyond last used array slot?
+      inToPos = lastPos;    // put row into last available slot
+    else if (inToPos < 0)   // before first usable slot?
+      inToPos = 0;          // put row in very first slow
+
+    if (inHintFromPos > lastPos)  // beyond last used array slot?
+      inHintFromPos = lastPos;    // seek row in last available slot
+    else if (inHintFromPos < 0)   // before first usable slot?
+      inHintFromPos = 0;          // seek row in very first slow
+
+    morkRow** fromSlot = 0;            // becomes nonzero of ioRow is ever found
+    morkRow** rowsEnd = rows + count;  // one past last used array slot
+
+    if (inHintFromPos <= 0)  // start of table? just scan for row?
+    {
+      morkRow** cursor = rows - 1;  // before first array slot
+      while (++cursor < rowsEnd) {
+        if (*cursor == ioRow) {
+          fromSlot = cursor;
+          break;  // end while loop
+        }
+      }
+    } else  // search near the start position and work outwards
+    {
+      morkRow** lo = rows + inHintFromPos;  // lowest search point
+      morkRow** hi = lo;  // highest search point starts at lowest point
+
+      // Seek ioRow in spiral widening search below and above inHintFromPos.
+      // This is faster when inHintFromPos is at all accurate, but is slower
+      // than a straightforward scan when inHintFromPos is nearly random.
+
+      while (lo >= rows || hi < rowsEnd)  // keep searching?
+      {
+        if (lo >= rows)  // low direction search still feasible?
+        {
+          if (*lo == ioRow)  // actually found the row?
+          {
+            fromSlot = lo;
+            break;  // end while loop
+          }
+          --lo;  // advance further lower
+        }
+        if (hi < rowsEnd)  // high direction search still feasible?
+        {
+          if (*hi == ioRow)  // actually found the row?
+          {
+            fromSlot = hi;
+            break;  // end while loop
+          }
+          ++hi;  // advance further higher
+        }
+      }
+    }
+
+    if (fromSlot)  // ioRow was found as a table member?
+    {
+      outPos = fromSlot - rows;  // actual position where row was found
+      if (outPos != inToPos)     // actually need to move this row?
+      {
+        morkRow** toSlot = rows + inToPos;  // slot where row must go
+
+        ++mTable_RowArray.mArray_Seed;  // we modify the array now:
+
+        if (fromSlot < toSlot)  // row is moving upwards?
+        {
+          morkRow** up = fromSlot;  // leading pointer going upward
+          while (++up <= toSlot)    // have not gone above destination?
+          {
+            *fromSlot = *up;  // shift down one
+            fromSlot = up;    // shift trailing pointer up
+          }
+        } else  // ( fromSlot > toSlot ) // row is moving downwards
+        {
+          morkRow** down = fromSlot;  // leading pointer going downward
+          while (--down >= toSlot)    // have not gone below destination?
+          {
+            *fromSlot = *down;  // shift up one
+            fromSlot = down;    // shift trailing pointer
+          }
+        }
+        *toSlot = ioRow;
+        outPos = inToPos;  // okay, we actually moved the row here
+
+        if (canDirty) this->note_row_move(ev, ioRow, inToPos);
+      }
+    }
+  }
+  return outPos;
+}
+
+mork_bool morkTable::AddRow(morkEnv* ev, morkRow* ioRow) {
+  morkRow* row = this->find_member_row(ev, ioRow);
+  if (!row && ev->Good()) {
+    mork_bool canDirty = (this->IsTableClean())
+                             ? this->MaybeDirtySpaceStoreAndTable()
+                             : morkBool_kTrue;
+
+    mork_pos pos = mTable_RowArray.AppendSlot(ev, ioRow);
+    if (ev->Good() && pos >= 0) {
+      ioRow->AddRowGcUse(ev);
+      if (mTable_RowMap) {
+        if (mTable_RowMap->AddRow(ev, ioRow)) {
+          // okay, anything else?
+        } else
+          mTable_RowArray.CutSlot(ev, pos);
+      } else if (mTable_RowArray.mArray_Fill >= morkTable_kMakeRowMapThreshold)
+        this->build_row_map(ev);
+
+      if (canDirty && ev->Good()) this->NoteTableAddRow(ev, ioRow);
+    }
+  }
+  return ev->Good();
+}
+
+mork_bool morkTable::CutRow(morkEnv* ev, morkRow* ioRow) {
+  morkRow* row = this->find_member_row(ev, ioRow);
+  if (row) {
+    mork_bool canDirty = (this->IsTableClean())
+                             ? this->MaybeDirtySpaceStoreAndTable()
+                             : morkBool_kTrue;
+
+    mork_count count = mTable_RowArray.mArray_Fill;
+    morkRow** rowSlots = (morkRow**)mTable_RowArray.mArray_Slots;
+    if (rowSlots)  // array has vector as expected?
+    {
+      mork_pos pos = -1;
+      morkRow** end = rowSlots + count;
+      morkRow** slot = rowSlots - 1;  // prepare for preincrement:
+      while (++slot < end)            // another slot to check?
+      {
+        if (*slot == row)  // found the slot containing row?
+        {
+          pos = slot - rowSlots;  // record absolute position
+          break;                  // end while loop
+        }
+      }
+      if (pos >= 0)  // need to cut if from the array?
+        mTable_RowArray.CutSlot(ev, pos);
+      else
+        ev->NewWarning("row not found in array");
+    } else
+      mTable_RowArray.NilSlotsAddressError(ev);
+
+    if (mTable_RowMap) mTable_RowMap->CutRow(ev, ioRow);
+
+    if (canDirty) this->NoteTableCutRow(ev, ioRow);
+
+    if (ioRow->CutRowGcUse(ev) == 0) ioRow->OnZeroRowGcUse(ev);
+  }
+  return ev->Good();
+}
+
+mork_bool morkTable::CutAllRows(morkEnv* ev) {
+  if (this->MaybeDirtySpaceStoreAndTable()) {
+    this->SetTableRewrite();  // everything is dirty
+    this->NoteTableSetAll(ev);
+  }
+
+  if (ev->Good()) {
+    mTable_RowArray.CutAllSlots(ev);
+    if (mTable_RowMap) {
+      morkRowMapIter i(ev, mTable_RowMap);
+      mork_change* c = 0;
+      morkRow* r = 0;
+
+      for (c = i.FirstRow(ev, &r); c; c = i.NextRow(ev, &r)) {
+        if (r) {
+          if (r->CutRowGcUse(ev) == 0) r->OnZeroRowGcUse(ev);
+
+          i.CutHereRow(ev, (morkRow**)0);
+        } else
+          ev->NewWarning("nil row in table map");
+      }
+    }
+  }
+  return ev->Good();
+}
+
+morkTableRowCursor* morkTable::NewTableRowCursor(morkEnv* ev,
+                                                 mork_pos inRowPos) {
+  morkTableRowCursor* outCursor = 0;
+  if (ev->Good()) {
+    nsIMdbHeap* heap = mTable_Store->mPort_Heap;
+    morkTableRowCursor* cursor = new (*heap, ev)
+        morkTableRowCursor(ev, morkUsage::kHeap, heap, this, inRowPos);
+    if (cursor) {
+      if (ev->Good())
+        outCursor = cursor;
+      else
+        cursor->CutStrongRef((nsIMdbEnv*)ev);
+    }
+  }
+  return outCursor;
+}
+
+// 456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+morkTableChange::morkTableChange(morkEnv* ev, mork_change inChange,
+                                 morkRow* ioRow)
+    // use this constructor for inChange == morkChange_kAdd or morkChange_kCut
+    : morkNext(),
+      mTableChange_Row(ioRow),
+      mTableChange_Pos(morkTableChange_kNone) {
+  if (ioRow) {
+    if (ioRow->IsRow()) {
+      if (inChange == morkChange_kAdd)
+        mTableChange_Pos = morkTableChange_kAdd;
+      else if (inChange == morkChange_kCut)
+        mTableChange_Pos = morkTableChange_kCut;
+      else
+        this->UnknownChangeError(ev);
+    } else
+      ioRow->NonRowTypeError(ev);
+  } else
+    ev->NilPointerError();
+}
+
+morkTableChange::morkTableChange(morkEnv* ev, morkRow* ioRow, mork_pos inPos)
+    // use this constructor when the row is moved
+    : morkNext(), mTableChange_Row(ioRow), mTableChange_Pos(inPos) {
+  if (ioRow) {
+    if (ioRow->IsRow()) {
+      if (inPos < 0) this->NegativeMovePosError(ev);
+    } else
+      ioRow->NonRowTypeError(ev);
+  } else
+    ev->NilPointerError();
+}
+
+void morkTableChange::UnknownChangeError(morkEnv* ev) const
+// morkChange_kAdd or morkChange_kCut
+{
+  ev->NewError("mTableChange_Pos neither kAdd nor kCut");
+}
+
+void morkTableChange::NegativeMovePosError(morkEnv* ev) const
+// move must be non-neg position
+{
+  ev->NewError("negative mTableChange_Pos for row move");
+}
+
+// 456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+morkTableMap::~morkTableMap() {}
+
+morkTableMap::morkTableMap(morkEnv* ev, const morkUsage& inUsage,
+                           nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
+#ifdef MORK_BEAD_OVER_NODE_MAPS
+    : morkBeadMap(ev, inUsage, ioHeap, ioSlotHeap)
+#else  /*MORK_BEAD_OVER_NODE_MAPS*/
+    : morkNodeMap(ev, inUsage, ioHeap, ioSlotHeap)
+#endif /*MORK_BEAD_OVER_NODE_MAPS*/
+{
+  if (ev->Good()) mNode_Derived = morkDerived_kTableMap;
+}
+
+// 456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789